weight of water, the hydraulic mean depth of the sewer and the bed slope w is the unit of the sewer, then the tractive force exerted by flowing water, is________________________?

A. w r S S
B. w r1/2
C. w r S
D. w r2/3

Related Mcqs:

The angle subtended by the surface of sewer water with partial flow, at sewer centre is 120°, the depth of sewerage is________________________?
A. 20 cm B. 25 cm C. 40 cm D. 50 cm...
If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by_________________?
A. Chezy B. Manning C. Bazin D. Kutter...
The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is______________?
A. 0.68 m B. 0.88 m C. 1.36 m D. 1.76 m...
In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is_______________?
A. D B. D /2 C. D/3 D. D/4...
A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal tc__________________?
A. 10 kg B. 100 kg C. 1000 kg D. 1 kg E. 10,000 kg...
The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called ____________________?
A. Inverted syphon B. Depressed sewer C. Sag pipe D. all of these...
If the flame of a miner’s safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains_______________?
A. Hydrogen sulphide B. Carbon dioxide C. Methane D. Oxygen...
If the discharge of a sewer running half is 628 1.p.s., i = 0.001, and n = 0.010, the diameter of the sewer, is__________________?
A. 1.39 m B. 1.49 m C. 1.59 m D. 1.69 m...
The spacing of man holes along a straight portion of a sewer is 300 m, the diameter of the sewer may be__________________?
A. 0.9 cm B. 1.2 m C. 1.5 m D. > 1.5 m...
Assertion A.: The minimum self cleansing velocity in the sewer, at least once a day, must be generated. Reason (R): If certain deposition takes place and is not removed, it obstructs free flow and causes further deposition leading to complete blocking of the sewer?
A. Both A and R are true and R is the correct explanation of A B. Both A and R are true but R is not a correct explanation of A C. A is true but R is false D. A is false but R is true...